HP Designjet 4500 Printer series - Manual (Page 231)

right (B). Either part can be used to help you decide which is the best of the series of patterns; it will
depend on your circumstances. However, if you are using glossy paper or canvas, you are
recommended to ignore part A and make your selection by looking at part B only.
In the color gradient, part A, you should look for light or dark horizontal bands (banding), which
indicate that the paper advance is not quite right. Usually you will see dark bands across the first
pattern and light bands across the last pattern (see the examples below). The best pattern is one
with no banding; if in doubt, select the pattern in the middle, between the last pattern with dark bands
and the first pattern with light bands.
If you find it difficult to identify the best pattern, the following scenario descriptions may help you.
● Where you have only one pattern which is clearly the best and the ones above and below
contain light/dark bands, select this pattern.
ENWW The calibration process in detail 217
How do I... (paper advance calibration
topics
)